查询词典 acoustic

To complement the limitation of the acoustic location,the mechanism of passive vibration location on the ground by regular triangle array is given.

为了补充声探测系统在特殊情况下的不足，根据正三角震动阵列定位原理，推导了正三角震动阵列对地面震动目标的定位公式。

Surface acoustic wave should be carried out to determine the output surface and the relative depth of pump suction.

应进行声波液面测定，确定产液面与泵吸入口的相对深度。

The log data of Samandepe gas field in the Amu Darya Right Bank of Turkmenistan are old in logging suites, limited and inconsistent in logging items between early exploratory wells and later development wells. Based on the correlation of different log data, the suitable log data are selected from the available logging suites to build up a mathematical statistical model of artificial fitting acoustic curve. The non-linear correction of neutron and gamma ray data was performed to ensure the relative rationality and uniformity of log interpretation.

针对土库曼斯坦阿姆河右岸萨曼杰佩气田测井资料存在系列老、项目少、早期探井和后期开发井测井项目不统一的现状，通过不同测井资料问的相关分析，合理选用已有测井系列的测井资料，建立人工拟合声波曲线的统计数学模型；通过对中子伽马资料进行非线性校正，保证了测井解释评价资料的相对合理和统一。

Acoustic correlation velocity measurement technology is used to make measurements of velocity relative to the seabed.

声相关测速技术可以测得舰船相对于海底的绝对速度。

Numerical Simulation and Experimental Investigation on A Thermoacoustic Engine with Tapered Resonance Tube A symmetrical standing-wave thermoacoustic engine with tapered resonance tube has been numerically simulated with liner thermoacoustics. The simulation shows that using tapered resonance tube in thermoacoustic engine could decrease the velocity amplitude and lower the total acoustic power loss in the resonance tube. The experimental results indicate that the harmonic was suppressed effectively by using the tapered resonance tube, and the pressure ratio was improved.

采用锥形谐振管的热声发动机的数值模拟和实验研究利用线性热声理论，对一台采用锥形谐振管的驻波型热声发动机进行了数值模拟，发现采用锥形谐振管可有效降低工质气体的速度振幅，进而减小在谐振管中声功率的损失；与一台在相同频率下工作的采用等直径圆柱谐振管的驻波型热声发动机进行了实验对比，结果表明，在使用锥形管作为谐振管的热声发动机系统中，谐振管中的非线性效应得到了明显的抑制，热声发动机在基频模式下稳定运行，压比增大而加热温度降低。

By slightly increasing the separation of the two plates in the middle,a double-crystal structure forms,which allows acoustic waves to resonantly tunnel through it,with transmission peaks observed inside the band gaps.

处于带隙频率范围内的声波或者弹性波将被禁止在声子晶体中传播。

Long Range Ultra Short Base Line Position System is an underwater acoustic position system, which realize position, track and data communication to five underwater cooperative targets. USBL woks at responsion mode.

长程超短基线定位系统是利用水声定位技术实现对多个水下合作目标进行定位、跟踪和数据传输，系统工作于应答工作方式。

Sub-band Adaptive Filtering algorithm is a major method to deal with the acoustic echo cancellation problem with long reverberation time.

子带自适应滤波算法是处理长阶声学回声抵消问题的重要方法之一。

A good halls, want to get good sound quality, building on the acoustic design must meet two conditions: IF the right reverberation time and ideals of the reverberation time curve.

一个好的厅堂，想要获得好的音质，建筑声学设计上必须满足两个条件：合适的中频混响时间和理想的混响时间曲线。

In complicated acoustic environment where the characteristics of noise field and reverberation time are unknown, the performance of the speech enhancement methods with microphone array face a great challenge.

在复杂的声学环境中，通常噪声场特性和混响强度是未知的，这样就对麦克风阵列语音增强算法的性能提出了较高的要求。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。